How can I fix this situation?

There's this guy I like for a long time, and we've talked for a while. But for some reason my friend asked him to slap his friend's butt I don't even know why (probably to make me uncomfortable or something 😑) Then he did it and he was like staring at me the whole time and biting his lip to be flirty I guess. But I ignored it and basically freaked out a little. I didn't know how to respond. Then he went away from his friends to talk to me but I was still trying to get my shit together and he just left.

the next day his friends were staring me then my friends were like "why tf are they staring at us" then they started glaring at them, It was really awkward... I don't know what to do!